From Vice:
Japan is a country that is dying—literally. A nation that was once considered the strongest economical powerhouse in the world, rivaling the US, has now slipped to second best. Japan has more people over the age of 65 and the smallest number of people under the age of 15 in the world. It is the fastest growing negative population in the world, and that's because hardly anyone is having babies. In these difficult times, the Japanese are putting marriage and families on the back burner and seeking recreational love and affection as a form of cheap escape with no strings attached. We sent Ryan Duffy to investigate this phenomenon, which led him to Tokyo's cuddle cafes and Yakuza-sponsored prostitution.
Some have pointed out that documentaries like this are simply capitalizing on the whole Japan is super weird stereotype. The content of this documentary is not representative of the Japanese culture in general - Vice tends to focus on experiences that are outside of the norm (i.e., cuddle cafes and the Yakuza), as that's what they find most interesting.
Somewhat NSFW (you can also watch a way more NSFW version on Vice.com: link):